privacy

package

v0.0.0-...-7ece11e Latest Latest Go to latest Published: Aug 29, 2023 License: MIT Imports: 15 Imported by: 7

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Repository

github.com/incognitochain/incognito-chain

README ¶

Privacy README

This file holds notes for privacy core team.

coins: - Get coin commitments - .Init()

- .Bytes()

coin object: - coin.ParseCoinObjectToInputCoin

Proofs: - Get output coins - Get input coins

Fix packages for v2: RPC, incognitokey, blockchain, transaction, privacy.

.ConvertOutputCoinToInputCoin()

When integrating v2 into v1 there are 3 scenarios that can happen:

- 1: inputs only coin_v1

- 2: inputs only coin_v2

- 3: inputs have coin_v1 with coin_v2

output must be coin_v2

Things need to be done when coding new version:

- 1: Code new version in transaction package (txprivacy.go, txversion_interface.go, txver1.go, txver2.go, ...).

- 2: Code new version for proof (if change)

- 3: Code new version for rangeproof (if change)

- If have 2, 3 then: Check batchtransaction.go file and change

Documentation ¶

Index ¶

Constants
Variables
func ArrayScalarFromBytes(b []byte) (*[]*operation.Scalar, error)
func ArrayScalarToBytes(arr *[]*operation.Scalar) ([]byte, error)
func CheckDuplicateScalarArray(arr []*Scalar) bool
func GetShardIDFromPublicKey(pk PublicKey) byte
func IsPointEqual(pa *Point, pb *Point) bool
func IsScalarEqual(pa *Scalar, pb *Scalar) bool
func NewCoinCA(p *coin.CoinParams, tokenID *common.Hash) (*CoinV2, *Point, error)
func NewCoinParams() *coin.CoinParams
type AggregatedRangeProof
type AggregatedRangeProofV1
type AggregatedRangeProofV2
type Coin
type CoinObject
type CoinV1
type CoinV2
- func NewCoinFromAmountAndTxRandomBytes(amount uint64, publicKey *operation.Point, txRandom *TxRandom, info []byte) *CoinV2
- func NewCoinFromPaymentInfo(p *coin.CoinParams) (*CoinV2, error)
type HybridCipherText
type OTAKey
type OTAReceiver
type PaymentAddress
- func GeneratePaymentAddress(privateKey []byte) PaymentAddress
type PaymentInfo
type PaymentWitness
type PaymentWitnessParam
type PlainCoin
type PlainCoinV1
type Point
- func HashToPoint(b []byte) *Point
- func RandomPoint() *Point
type PrivacyError
type PrivateKey
- func GeneratePrivateKey(seed []byte) PrivateKey
type Proof
- func NewProofWithVersion(version int8) Proof
type ProofForConversion
type ProofV1
type ProofV2
- func ProveV2(inputCoins []PlainCoin, outputCoins []*CoinV2, sharedSecrets []*Point, ...) (*ProofV2, error)
type PublicKey
type Scalar
- func ComputeAssetTagBlinder(sharedSecret *Point) (*Scalar, error)
- func HashToScalar(data []byte) *Scalar
- func RandomScalar() *Scalar
type SchnSignature
type SchnorrPrivateKey
type SchnorrPublicKey
type TransmissionKey
type TxRandom
type ViewingKey
- func GenerateViewingKey(privateKey []byte) ViewingKey

Constants ¶

View Source

const (
	CStringBurnAddress    = "burningaddress"
	Ed25519KeySize        = operation.Ed25519KeySize
	CStringBulletProof    = operation.CStringBulletProof
	CommitmentRingSize    = privacy_util.CommitmentRingSize
	CommitmentRingSizeExp = privacy_util.CommitmentRingSizeExp

	PedersenSndIndex        = operation.PedersenSndIndex
	PedersenValueIndex      = operation.PedersenValueIndex
	PedersenShardIDIndex    = operation.PedersenShardIDIndex
	PedersenPrivateKeyIndex = operation.PedersenPrivateKeyIndex
	PedersenRandomnessIndex = operation.PedersenRandomnessIndex

	RingSize           = privacy_util.RingSize
	MaxPrivacyAttempts = coin.MaxAttempts
	TxRandomGroupSize  = coin.TxRandomGroupSize

	CoinPrivacyTypeTransfer = coin.PrivacyTypeTransfer
	CoinPrivacyTypeMint     = coin.PrivacyTypeMint
)

Public Constants

View Source

const (
	MaxSizeInfoCoin = coin.MaxSizeInfoCoin // byte
)

Variables ¶

View Source

var DeriveShardInfoFromCoin = coin.DeriveShardInfoFromCoin

View Source

var ErrCodeMessage = errhandler.ErrCodeMessage

View Source

var LoggerV1 = &zkp.Logger

View Source

var LoggerV2 = &privacy_v2.Logger

View Source

var PedCom = operation.PedCom

Functions ¶

func ArrayScalarFromBytes ¶

func ArrayScalarFromBytes(b []byte) (*[]*operation.Scalar, error)

func ArrayScalarToBytes ¶

func ArrayScalarToBytes(arr *[]*operation.Scalar) ([]byte, error)

func CheckDuplicateScalarArray ¶

func CheckDuplicateScalarArray(arr []*Scalar) bool

func GetShardIDFromPublicKey ¶

func GetShardIDFromPublicKey(pk PublicKey) byte

func IsPointEqual ¶

func IsPointEqual(pa *Point, pb *Point) bool

func IsScalarEqual ¶

func IsScalarEqual(pa *Scalar, pb *Scalar) bool

func NewCoinCA ¶

func NewCoinCA(p *coin.CoinParams, tokenID *common.Hash) (*CoinV2, *Point, error)

func NewCoinParams ¶

func NewCoinParams() *coin.CoinParams

Types ¶

type AggregatedRangeProof ¶

type AggregatedRangeProof = agg_interface.AggregatedRangeProof

type AggregatedRangeProofV1 ¶

type AggregatedRangeProofV1 = aggregatedrange.AggregatedRangeProof

type AggregatedRangeProofV2 ¶

type AggregatedRangeProofV2 = bulletproofs.AggregatedRangeProof

type Coin ¶

type Coin = coin.Coin

type CoinObject ¶

type CoinObject = coin.CoinObject

type CoinV1 ¶

type CoinV1 = coin.CoinV1

type CoinV2 ¶

type CoinV2 = coin.CoinV2

func NewCoinFromAmountAndTxRandomBytes ¶

func NewCoinFromAmountAndTxRandomBytes(amount uint64, publicKey *operation.Point, txRandom *TxRandom, info []byte) *CoinV2

func NewCoinFromPaymentInfo ¶

func NewCoinFromPaymentInfo(p *coin.CoinParams) (*CoinV2, error)

type HybridCipherText ¶

type HybridCipherText = hybridencryption.HybridCipherText

type OTAKey ¶

type OTAKey = key.OTAKey

type OTAReceiver ¶

type OTAReceiver = coin.OTAReceiver

type PaymentAddress ¶

type PaymentAddress = key.PaymentAddress

func GeneratePaymentAddress ¶

func GeneratePaymentAddress(privateKey []byte) PaymentAddress

type PaymentInfo ¶

type PaymentInfo = key.PaymentInfo

type PaymentWitness ¶

type PaymentWitness = zkp.PaymentWitness

type PaymentWitnessParam ¶

type PaymentWitnessParam = zkp.PaymentWitnessParam

type PlainCoin ¶

type PlainCoin = coin.PlainCoin

type PlainCoinV1 ¶

type PlainCoinV1 = coin.PlainCoinV1

type Point ¶

type Point = operation.Point

func HashToPoint ¶

func HashToPoint(b []byte) *Point

func RandomPoint ¶

func RandomPoint() *Point

type PrivacyError ¶

type PrivacyError = errhandler.PrivacyError //nolint:revive

type PrivateKey ¶

type PrivateKey = key.PrivateKey

func GeneratePrivateKey ¶

func GeneratePrivateKey(seed []byte) PrivateKey

type Proof ¶

type Proof = proof.Proof

func NewProofWithVersion ¶

func NewProofWithVersion(version int8) Proof

type ProofForConversion ¶

type ProofForConversion = privacy_v2.ConversionProofVer1ToVer2

type ProofV1 ¶

type ProofV1 = zkp.PaymentProof

type ProofV2 ¶

type ProofV2 = privacy_v2.PaymentProofV2

func ProveV2 ¶

func ProveV2(inputCoins []PlainCoin, outputCoins []*CoinV2, sharedSecrets []*Point, hasPrivacy bool, paymentInfo []*PaymentInfo) (*ProofV2, error)

type PublicKey ¶

type PublicKey = key.PublicKey

type Scalar ¶

type Scalar = operation.Scalar

func ComputeAssetTagBlinder ¶

func ComputeAssetTagBlinder(sharedSecret *Point) (*Scalar, error)

func HashToScalar ¶

func HashToScalar(data []byte) *Scalar

func RandomScalar ¶

func RandomScalar() *Scalar

Point and Scalar operations

type SchnSignature ¶

type SchnSignature = schnorr.SchnSignature

type SchnorrPrivateKey ¶

type SchnorrPrivateKey = schnorr.SchnorrPrivateKey

type SchnorrPublicKey ¶

type SchnorrPublicKey = schnorr.SchnorrPublicKey

type TransmissionKey ¶

type TransmissionKey = key.TransmissionKey

type TxRandom ¶

type TxRandom = coin.TxRandom

type ViewingKey ¶

type ViewingKey = key.ViewingKey

func GenerateViewingKey ¶

func GenerateViewingKey(privateKey []byte) ViewingKey

Source Files ¶

View all Source files

privacy_exports.go

Directories ¶

Path	Synopsis
coin
mocks
env
errorhandler
key
operation Package operation allows for basic manipulation of scalars & group elements	Package operation allows for basic manipulation of scalars & group elements
edwards25519 Package edwards25519 implements group logic for the twisted Edwards curve	Package edwards25519 implements group logic for the twisted Edwards curve
edwards25519/field Package field implements fast arithmetic modulo 2^255-19.	Package field implements fast arithmetic modulo 2^255-19.
v1
v1/curve25519
privacy_util
privacy_v1
hybridencryption
schnorr
zeroknowledge
zeroknowledge/aggregatedrange
zeroknowledge/aggregatedrange/bulletproofs
zeroknowledge/oneoutofmany
zeroknowledge/oneoutofmany/polynomial
zeroknowledge/serialnumbernoprivacy
zeroknowledge/serialnumberprivacy
zeroknowledge/utils
privacy_v2
bulletproofs Package bulletproofs manages the creation, proving & verification of Bulletproofs.	Package bulletproofs manages the creation, proving & verification of Bulletproofs.
bulletproofs/v1 Package bulletproofs manages the creation, proving & verification of Bulletproofs.	Package bulletproofs manages the creation, proving & verification of Bulletproofs.
mlsag variable names to match names in the crypto protocol Package mlsag contains the implementation of MLSAG, a ring signature scheme.	variable names to match names in the crypto protocol Package mlsag contains the implementation of MLSAG, a ring signature scheme.
proof
agg_interface

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